Parameters of several representative samples.

Samples parameters	Sample Mo5	Sample Mo6
After pressing and before sintering
Initial composition, Ni : Mo : Ti : Al : C, molar ratios	0 : 2 : 1 : 7 : 2	1 : 2 : 1 : 7 : 2
Weight, g	4	4
Geometrical dimensions (diameter, thickness), mm	25, 3.5	25, 3.5
After sintering for 3 h at 1500 °C
Weight, g	3.85	3.93
Geometrical dimensions (diameter, thickness), mm	25.1, 5	22.8, 3.4
	Sample Mo5Na	Sample Mo6Na
After etching during 60 days
Weight, g	2.06	2.57
Geometrical dimensions (diameter, thickness), mm	21, 3	22.8, 3.4